I've submitted a 2 layer PCB design completed with Altium Designer 24.6.1.
Gerbers and NCDrill files attached in ZIP archive.
I understand that Gerbv doesn't yet support PTH slots, but it seems to have problems with the regular PTH locations.
They view fine in Gerbv 2.6.1a beta.

Thanks for looking into this!
Best,
Ed Ouellette
Files.zip